(12) INTERNATIONAL APPLICATION PUBLISHED UNDER THE PATENT COOPERATION TREATY (PCT) (19) World Intellectual Property Organization International Bureau (10) International Publication Number (43) International Publication Date 22 April 2010 (22.04.2010) WO 2010/045656 A2 (51) International Patent Classification: (81) Designated States (unless otherwise indicated, for every A61K 31/155 (2006.01) A61P 3/10 (2006.01) kind of national protection available): AE, AG, AL, AM, A61K 31/7034 (2006.01) AO, AT, AU, AZ, BA, BB, BG, BH, BR, BW, BY, BZ, CA, CH, CL, CN, CO, CR, CU, CZ, DE, DK, DM, DO, (21) International Application Number: DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, PCT/US2009/061201 HN, HR, HU, ID, IL, IN, IS, JP, KE, KG, KM, KN, KP, (22) International Filing Date: KR, KZ, LA, LC, LK, LR, LS, LT, LU, LY, MA, MD, 19 October 2009 (19.10.2009) ME, MG, MK, MN, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, OM, PE, PG, PH, PL, PT, RO, RS, RU, SC, SD, (25) Filing Language: English SE, SG, SK, SL, SM, ST, SV, SY, TJ, TM, TN, TR, TT, (26) Publication Language: English TZ, UA, UG, US, UZ, VC, VN, ZA, ZM, ZW. (30) Priority Data: (84) Designated States (unless otherwise indicated, for every 61/196,369 17 October 2008 (17.10.2008) US kind of regional protection available): ARIPO (BW, GH, GM, KE, LS, MW, MZ, NA, SD, SL, SZ, TZ, UG, ZM, (71) Applicant (for all designated States except US): NEC- ZW), Eurasian (AM, AZ, BY, KG, KZ, MD, RU, TJ, TID, INC. [US/US]; 116 Village Boulevard, Suite 200, TM), European (AT, BE, BG, CH, CY, CZ, DE, DK, EE, Princeton, NJ 08540 (US). ES, FI, FR, GB, GR, HR, HU, IE, IS, IT, LT, LU, LV, MC, MK, MT, NL, NO, PL, PT, RO, SE, SI, SK, SM, (72) Inventor; and TR), OAPI (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, (75) Inventor/Applicant (for US only): SESHA, Ramesh [IN/ ML, MR, NE, SN, TD, TG). US]; 9 113 Taylor Court, West Windsor, NJ 08550 (US). Published: (74) Agent: PROUT, William, F.; Prout International IP, L.L.C., Post Office Box 761, Wayzata, MN 55391 (US). — without international search report and to be republished upon receipt of that report (Rule 48.2(gf) (54) Title: NOVEL SGLT2 INHIBITOR DOSAGE FORMS (57) Abstract: A pharmaceutical composition comprising a sodium-dependent glucose transporter (SGLT2) inhibitor and a biguanide, wherein at least one of the active agents is in slow release form, is provided. A method for treating diabetes in a patient in need thereof including administering an anti-diabetic combination comprising a sodium- dependent glucose transporter (SGLT2) inhibitor and a biguanide, wherein at least one of the active agents is in slow release form, is also provided. NOVEL SGLT2 INHIBITOR DOSAGE FORMS Related Application [0001] This application claims priority from a U.S. Patent application serial no. 61/196,369, filed on October 17, 2008, which is incorporated herein by reference. [0002] Diabetes mellitus is a progressive metabolic disorder with diverse pathologic manifestations and is often associated with lipid metabolism and glycometabolic disorders. The long-term effects of diabetes result from its vascular complications, e.g., the microvascular complications of retinopathy, neuropathy and nephropathy, and the macrovascular complications of cardiovascular, cerebrovascular and peripheral vascular diseases. Initially, diet and exercise is the mainstay of treatment of type II diabetes. However, this is often followed by administration of oral hypoglycemic agents. [0003] Exemplary drugs useful for managing type II diabetes and its precursor syndromes such as insulin resistance include different classes of compounds, biguanides such as metformin, phenformin, buformin, sulfonylureas such as glipizide, glimiperide, glyburide, glibornuride, glisoxepide, gliclazide acetohexamide, chlorpropamide, tolazamide, and tolbutamide PPAR agents such as troglitazone, pioglitazone, rosiglitazone, ciglitazone, isaglitazone, darglitazone, zorglitazone, englitazone, balaglitazone etc, α-glycosidase inhibitors such as acarbose and miglitol, meglitinides such as repaglinide, nateglinide, Dual PPAR agonists such as aleglitazar, muraglitazar, tesaglitazar etc, Dipeptidyl Peptidase IV inhibitors (DPP IV inhibitors) such as sitagliptin, vildagliptin, alogliptin, saxagliptin, dutogliptin, linagliptin, melogliptin etc, Glucagon-like peptide- 1 analogs such as exenatide, liraglutide, albiglutide, taspoglutide etc. Exemplary structures of each of these classes of anti-diabetic drugs are listed below. At least one drug in each class of agents has been approved while a large number of others are in the pipeline. [0004] Sodium-dependent glucose transporter (SGLT2) inhibitor such as Dapagliflozin (IUPAC name: 2S,3^4^5S,6i?)-2-[4-chloro-3-(4-ethoxybenzyl)phenyl]-6- (hydroxymethyl) tetrahydro-2 -pyran-3,4,5-triol, Molecular Weight; 503), Remogliflozin (β-D-Glucopyranoside, 5-methyl-4-[[4-(l-methylethoxy)phenyl]methyl]-l-(l- methylethyl)-l -pyrazol-3-yl, 6-(ethyl carbonate, Molecular Weight: 522), Sergliflozin (IUPAC name; 2-[(4-methoxyphenyl) methyljphenyl 6-O-(ethoxycarbonyl)- β-D- glucopyranoside, Molecular weight: 448), JNJ 28431754/ TA-7284 (Canagliflozin), ISIS 388626, BI 10773, BI 44847, and AVE 2268 etc, are another novel class of anti-diabetic agents that are under clinical trials for the treatment of diabetes. Sodium-dependent glucose co-transporters are a family of glucose transporter found in the intestinal mucosa of the small intestine (SGLTl) and the proximal tubule of the nephron (SGLT2 and SGLTl). They contribute to renal glucose re-absorption. Dapagliflozin or its pharmaceutically acceptable salts or solvates thereof (hereinafter dapagliflozin), an orally active sodium-dependent glucose transporter (SGLT2) inhibitor is disclosed in U.S. Pat. No. 6,515,1 17. The molecular structures of representative examples of sodium-dependent glucose transporter (SGLT2) inhibitors are below. Dapagliflozin Sergliflozin Remogliflozin Canagliflozin [0005] Presently, DPP IV inhibitors, biguanides, glitazones and sulfonylureas are commercially available in the form of tablets of the individual drugs, in immediate release (IR) formulations or in controlled release (CR) formulations. These are usually administered orally to patients in need thereof, using protocols calling for the administration of the individual ingredient. [0006] In type 2 diabetic patients failure of monotherapy manifests itself in the form of Insulin resistance and reduced insulin secretion. Therefore, treatment approaches include reducing insulin resistance or increasing insulin sensitivity and augmenting insulin secretion from the pancreatic beta cells. The tissues most commonly resistant to the actions of insulin are liver, skeletal muscles, and adipose tissues. Therefore, combination treatment strategies directed towards improving the insulin sensitivity of these major tissues can help the patients. [0007] Typically, metformin monotherapy has been used as the initial treatment in diabetic patients. If monotherapy fails it may be supplemented with other drugs. One solution for treating T2DM uses at least two drugs to obviate the mono-therapy difficulties that can accompany prolonged use of metformin. The addition of a second drug, e.g., DPP IV inhibitors, glitazones or sulfonylureas to the concurrent treatment can provide a balance of stimulated release of insulin while ameliorating insulin resistance. This can provide an optimal level of glycemic control that is unattainable using monotherapy. However, requiring a patient to take multiple medications for the prophylaxis or treatment of diseases can result in patient inconvenience and lead to non-compliance of the prescribed dosage regimen. The ease of using single composition for multiple medications as opposed to separate administration of the individual medications has long been recognized in the practice of medicine. Such a composition can provide a therapeutic advantage for the benefit of the patient and the clinician. Further, such a composition can provide both increased convenience and improved patient compliance resulting from the avoidance of missed doses through patient forgetfulness. [0008] Pharmaceutical dosage forms containing combinations of anti-diabetic drugs are known from for example, EPO 0 749 751 discloses pioglitazone as an insulin sensitivity enhancer, combined with other anti-diabetics such as metformin, phenformin or buformin. The 7 51 application also discloses that these drugs can be associated (mixed or coated) with conventional excipients to provide taste masking or provide a sustained or slow release. U.S. Patent No. 6,01 1,049 discloses a pharmaceutical composition having pioglitazone or trolitazone and metformin in slow release forms such as osmotic pumps or skin patches. Other combinations of antihyperglycemic drugs and thiazolidinedione derivatives can be found, e.g., in U.S. Patent Nos. 6,524,621; 6,475,521; 6,451,342 and 6,153,632 and PCT patent applications WO 01/3594 and WO 01/3594. U.S. Patent No. 7,125,873 discloses a pharmaceutical composition of a DPP IV inhibitor, e.g., Sitagliptin with other anti-diabetic drugs such as biguanide and PPAR agonists. U.S. Patent Application No. 20090105265 discloses pharmaceutical compositions comprising fixed- dose combinations of a dipeptidyl peptidase-4 inhibitor and metformin, methods of preparing such pharmaceutical compositions, and methods of treating Type 2 diabetes with such pharmaceutical compositions. U.S. Patent Application No. 20080234366 discloses pharmaceutical formulations are provided which are in the form of capsules